Home / 18,607,689.36-25,674,847.65-10,871,237.61

Finding the Fourth Proportional to 18,607,689.36, 25,674,847.65 and 10,871,237.61

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Solution

The fourth proportional to 18,607,689.36, 25,674,847.65 and 10,871,237.61 is: 15,000,109.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607,689.36 : 25,674,847.65 = 10,871,237.61 : x
  2. Step 2: Convert to fraction form
    18,607,689.36/25,674,847.65 = 10,871,237.61/x
  3. Step 3: Cross multiply
    18,607,689.36x = 25,674,847.65 × 10,871,237.61
  4. Step 4: Simplify right side
    18,607,689.36x = 279,117,369,403,700.09
  5. Step 5: Solve for x
    x = 279,117,369,403,700.09/18,607,689.36
  6. Step 6: Final answer
    x = 15,000,109.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.